Ksal Morningstar, a married woman, invites her husband's friend over under the guise of a social visit. While her unsuspecting husband watches TV, she leads the friend, Magrinho, to their bedroom. The friend, aware of her husband's presence, begins to masturbate, much to Ksal's delight. She watches, her arousal growing, as he strokes his cock, her eyes darting between him and the closed bedroom door. Her husband, unaware, continues to watch TV, while his wife and friend engage in a taboo, exhilarating act of betrayal.